Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/04/2024, 19:36

General

  • Target
    update_2ffaca76.dll
  • Size 69KB
  • Sample240402-ya9bdabd46
  • SHA256 65da6d9f781ff5fc2865b8850cfa64993b36f00151387fdce25859781c1eb711
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • latrodectus

C2
  • https://titnovacrion.top/live/

  • https://skinnyjeanso.com/live/

Signatures

  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Detect larodectus Loader variant 2 8 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\update_2ffaca76.dll,#1
    1⤵
    • Deletes itself
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4528
    • C:\Windows\system32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_9729806f.dll", #1
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:4028

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Update_9729806f.dll

        • Path C:\Users\Admin\AppData\Roaming\Custom_update\Update_9729806f.dll
        • Size 69KB
        • SHA256 65da6d9f781ff5fc2865b8850cfa64993b36f00151387fdce25859781c1eb711
        • MD5 SHA1 SHA512 SSDEEP

        memory/4028-7-0x00000235F2D30000-0x00000235F2D44000-memory.dmp

        memory/4028-9-0x00000235F2D30000-0x00000235F2D44000-memory.dmp

        memory/4028-8-0x00000235F2D30000-0x00000235F2D44000-memory.dmp

        memory/4528-0-0x00000211BBFD0000-0x00000211BBFE4000-memory.dmp

        memory/4528-1-0x00000211BBFD0000-0x00000211BBFE4000-memory.dmp

        memory/4528-4-0x0000000180000000-0x0000000180014000-memory.dmp

        memory/4528-6-0x00000211BBFD0000-0x00000211BBFE4000-memory.dmp